Centrifugal machine



(No Model.)

S. S. BARBIE.

GBNTRIFUGAL MACHINE. No. 373,577. Patented Nov. 22, 1887.

7722 31 eases.

& PETERS, Hutu-Lithograph", Wanhinglnn. uhc

UNITED STATES SAMUEL S. BARRIE, OF BROOKLYN, NEXV YORK.

CENTFHFUGAL MACHlNE.

SPECIFICATION forming part of Letters Patent No. 373,577, dated November22, 1887 Application filed May 1, 1887.

To all whom it may concern.-

Be it known that I, SAMUEL S. BARBIE, of the city of Brooklyn, in thecounty of Kings and State of New York, have invented a new and usefulImprovement in Centrifugal Machines, of which the following is aspecification, reference being had to the accompanying drawings.

The object of this invention is to provide for more effectuallyrestraining the sweep 0r swing of the basket-spindle and the more rapidautomatic restoration of thespindle and basket to their normal uprightposition in case of their being unequally loaded; and to this end myimprovement consists in the coinbination,with the said spindle and itsupper bearing orjournal-box, of anon-rotating counter-balanceattached tothe journal-box, and swinging links or suspension connections forsuspending the said box or bearing and counter-balance from fixedpoints, the said links or connections having in the normal position ofthe spindle an inclination from their upper ends toward the spindle,whereby the said bearings or box and counter-balance are always keptsuspended with the axis of the box or bearing in line with the axisofthe spindle.

Figure l in the drawings represents a central vertical section of ahydro-extractor with my improvement applied thereto. Fig. 2 is a planview of the suspended, loaded, or counterbalanccd journal-box.

Similar letters of reference designate corre sponding parts in bothfigures.

A designates the basket; B,the basket-spindle,having the basket firmlysecured on its upperend, and O the stationary shell surrounding thebasket.

On the lower part of the spindle B is a broad fast collar or flange, a,which has acircumference about equal in size to the drivingpulley D.This pulley is bored to fit loosely to the part 6 of the spindle belowthe flange or collar a; but the spindle does not extend to the bottom ofthe pulley, a pivot, I), being firmly secured in the bottom thereof tobe received in the fixed step-bearing c.

The abovedescribed construction of spindle, driving-pulley, pivot, andfriction device constitutes virtually a spindlein two rotating sections,the lower one, 6, of which is sup- Serial No. 237,138. (No mode.)

ported in a step-bearing and carries the driviug-pulley, and the other,13, carries the basket and a friction driving collar, through whichmotion is received from the drivingpulley.

Between the top of the pulley and the bot tom of the flange or collar ais a disk, (1, of leather or other suitable substance, to transmitfriction between the lower face of the said flange or collar and theupper face of the pulley. This disk is represented as secured in acavity in the collar or flange. The collar or flange and the upper faceof the pulley thus constitute two members of a friction driving devicethrough which the power of the driving belt applied to the pulley istransmitted 'from the pulley to the shaft. The necessary friction isproduced in thisdevice by the weight of the spindle, the basket, and thecontents of the latter.

When power is applied to the belt, the pulley at once starts at fullspeed, and the friction between the pulley and the shaft causes thespindle and the basket to start easily and their speed to be graduallyaccelerated till they attain the maximum speed of the pulley without anystraining or slipping of the belt.

E is the upper journal-box of the spindle. Fis the load orcounter-balance applied to said journalbox. G G are links by which thesaid journal-box and counter-balauceare suspended from the bottom of thefixed shell 0, the said links being arranged at equal distances from thenormal vertical line of the axis of the spindle and equal distances fromeach other. By thus applying a loadorcounter-balance to the journal-boxand suspending it to hang freely from fixed points the force ofgravitation always tends to bring the center of the spindle directly ina point central to the several points of suspension, and consequently tobring the spindle to an upright position, the center of the step bearingbeing vertically below the said central point.

In the example represented in Fig. 1 and in bold outline in Fig. 2 thecounter-balanceF is a heavy disk of metal and the journal-box E isconstructed, formed, or secured in the center of the said disk; but thecounter-balance may consist ofa central 'hub in or to which thejournal-box is constructed or secured, and

which is provided with arms, as shown in dotted outline in Fig. 2, forthe purpose of placing the pointsff of its attachment; to thesuspending-links G G at a suitable distance from the journal-box and thespindle. The distances of these points of suspension and of the upperfixed points, 9, of suspension'of the said links from the normal orvertical line of the axis of the spindle is such that when the spindleis upright the said links have'inclinations downward toward the centerof the spindle, as shown in Fig. l, the inclination being such-viz.,about twenty-fivedegrees to the vertical line in the examplerepresented-that the counterbalance will always be suspended in a planeat right angles to the spindle and' with itsjournal-box concentric withthe spindle and parallel with the axis thereof, so that the spindle willnot'be cramped in the box. Ordinarily the spindle is maintained in avertical posit-ion by the weight of the counterbalance, the latter beingin a horizontal position; but if the unequal load in the basket shouldthrow the spindle out of the vertical line the counter-balance wouldtake a corresponding inclination, and without so me means ofcompensating for'this inclination the counter-balance would cease to besuspended by some of the links; and it is for this compensation that thelinks or swinging suspensionconnections are inclined when in theirnormal positions. To illustrate the effect ofthis inclination of thelinks or suspension-connec tions. I will suppose that the spindleinclines to the left. The right-hand side of the counter-balance wouldthen be raised and the lefthand side thereof would be depressed; but inthe meantime the counter-balance has swung bodily tothe left and takenthe lower ends of the links in the same direction, and, owing to theinclination of the links,the right-handlink has its angle with thevertical increased and the left-hand link has its angle with thevertical diminished, the lower end of the righthand one being raised tocompensate for the rise of its corresponding side of the counterbalanceand the left-hand one being lowered unequally loaded it and the spindlewill swing from andabout the true vertical or normal axis; but thetendency of the weight toward its central position, increasing as thespindle swings farther from the normal axis, confines the swing or sweepwithin a given compass until the load gradually adjusts itself and thespindle assumes the vertical position. 7

The annular cup I (shown fastened to the spindle by aset screw) is adrip-cup to receive any oil that flows down from the upper journal-box,E

, What I claim as my invention, and desire to secure by Letters Patent,is-

The combination, with the basket and its spindle and the upperjournal-box of the latter, of a non -rotating counter-- balance andswingiugsnspension-connections,substantially as herein described, forfreely suspending the said journal-box and counter-balance from severalfixed points, the said connections-having in the normal condition of thespindle an inclination from their upper ends inwardtowardthespindle,whereby,asthespindleswings out of the verticalposition, the journal-box and counter-balance remain suspended with theaxis of the journal-box in line with the axis of the spindle, as hereinset forth.

' SAMUEL S. BARBIE. \Vitncsses:

FREDK. HAYNES,

HENRY J. MoBRIDE.

